voltagedetector
nounUK /ˈvəʊltɪdʒ dɪˌtektə/
US /ˈvoʊltɪdʒ dɪˌtektər/
A tool that tells you if electricity is there.
The electrician used a voltage detector to check the wire before touching it.
RELATED WORDS
OTHER MEANINGS
2. A small pen-shaped device that beeps or lights up near live wires.
She waved the voltage detector near the socket and it beeped.
3. A circuit that senses voltage levels and sends a signal.
The voltage detector in the robot stops it when the battery gets low.
4. A safety gadget used to avoid electric shocks.
Always carry a voltage detector when working on home wiring.